Core-making machine.



C. E. TEPPER.

CORE MAKlNG MACHNE.

APPLIcAloN m20 mm1, 1918.

Patented June 11, 918.

2 SHEETS-SHEET I.

LQQQEU C. E. TEPPER,

CURE MAKING MACHINE.

APPLlcATmN FILED JAN.21.|9|3.

Puvnted J un@ 11, 1918.

2 SHEETS-SHEET 2.

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' *To all 'whom it mayconcern: y l

Beit known thatI, CHARLESy ETEPPER, a citizeny of the United States, and resident of Rochesterjin thecounty of Monroe and State of New 'Yoik, have invented certain new and useful'Improvements in Core-Making 'Machines, of which the following is a specification. i l

he present invention relates to core making machines,'and more particularly to the type in which the core boX `and the bench are supported, so that oneis guided toward andfrom the other, an object of-tlus invention being toprovide for guiding the core box toward and from the bench in .euch a manner that all lateral play of thecore box may be eliminated, notwithstanding wearon the parts of the machine. Another object of theinvention is to support ithecore box 1n such'a manner that -itmay be swung about `two horizontal axes at righty anglesf to each other, one of said being inrear of the coreboinso that thecore box may lie-supported at any desired angle with referenceto the bencl.

ToA thesevand `other ends the invention consista of certain parts and combinations of parts, all'ofwhich will be hereinafter described, thenovel features being pointed out in the appended'claims.

U In the drawings:l-\

Figure yLis a side view of a machine constructed `in accordance-with 'this invention; FigfZ isla plan View of the saine machine;

'Fig 3 shows theinachi'ne infront elevartlon-y*l v H .i

Fig. 4 showsthe core. box inverted, for receiving lthe sand; i

Fig. 5 is a section ou the line 5`5, Fig. Y

40 2gand i, H y I FigvGis a section onthe' line G-(i, Fig. 2. It has been suggested prior to this invention' that the core boxand the bench be sup ported in such a manner that one of suchparts may move toward and from the other on guides. These guides, however, have been so constructed that the sand used in the molding operations increases the wearing action to such an extent that eventually the guided part has so much lateral play that the machine becomes useless, and must be thrown away or new guiding parts provided. According to this invention the wear in the guide parts is taken up in such a manner that an old machine operates as well as a new and this without the substitution of new i speiaeaaon of Letters Patent. f Panama@ Jun@ M, wie,

^= Appicarion filed January 21, 191s.

Serial N0. 213,103.`

guiding parts, when the old` guides have WOI'D.; l

Referring more particularly to the drawings where one embodimentof the invention is shown, 1 indicates av base frame to the upper faceuofwhic'h the bench plate 2 is secured preferably by bolts 3. This manner of securing the `bench plate E). to the base frame 1 permits the bench plate to have its plane with reference to the base frame changed, so that it may lie in an inclined position on thebase frame, ythis being sometimes `desirable when the core, instead of projecting upright, projects at an `inclination from-the bench plate. At the rear of the bench plate 2 a rod 4 projects upwardly, and in vrear of the guide rod 4 a guide rod 5 is provided. .0n the guide rod 4 a frame (3 is movable, said frame `having a tubular portion 7 surrounding the guide rod c-l and having Babbitt-.bushings .8 at opposite ends. To the frame 6a flexible connector 9 is secured at one end andpasses up about a pulley 10 having a weight 11 at itsfreeend acting as acoun'terbalance for the frame 6, and the parts carried thereby.

`In -orderto .take up `wear between the frame `6 and itsguidehrod 4, so thatlateral movenient'in'nthe frame 6 is prevented, a take-up deviceis employed comprising preferably an integralfextension or projection 12 on the frame coperating with one face of the, md5. The frame Gk also has an inclined surface 13 thereon which is substantially V-shaped in crosssection, and on this inclined surface 'slotted plate or member 14 is adjustable, so as to bear against the face of the rod 5 opposite that engaged by the-projection 12. .A bolt 15 passes through thefslot of the plate 14 to holdthe plate in its adjusted position on the inclined bearing 13. It is apparent that by shifting the plate 14 rearwardly on the inclined bearing 13, the rod 5 will be more firmly held between the plate 14 and the projection 12, and in this way prevent any lateral movement of the frame 6. The rod 5 is secured by a bolt 16 at its lower end, and by loosening this bolt the rod may be turned to present other portions thereof to the projection 12 and the plate 14 after the rod has been worn. In this way all lateral movement in the frame 6 may be eliminated, notwithstanding any wear on the guide 4 or in the take-up means. The frame 6 is provided with a slot 17 in which any tool may be introduced axis 25, being held in and oscillated for tlie purpose of ingy with the Walls of the slot in order to produce the vibrations iii the trarne 6,l forV the purpose of shaking the core box supported by such frame.

The core 1192;,18 maybe Secure .by `.belts i9 te a Supprug meneer veo, ure" latter having a tube 21 on its upper side iii-.Whicha rod 22 is secured by a bolt 23. The rod 22 extends rearwardly and projects into a forwardly-opening Asplit sleeve 24 which, in' turn, is mounted to `turn .about a horizontal diiierent positions by a bolt`26 anchored in the vframe 6l and o'perating in `an arcuate slot 27 formed in the rear end of the sleeve 24". A clamping sc'revv 28 passes through the sleeve 22E to connect the` latter onopposite sides of the', slot or split therein,1 and on this screw a thumb nut 29 operates in orderito increase or decrease' tension on the rod 22. It is apparent that the rod 22 may be turned inthe sleeve 24: about a horizontal axis, position of` the core box with reference to the plate 2 may be changed. The. nut 29 with the clamping bolt 28 serves to hold the rod 22 and the co're box in the adjusted pdsition. The angle of the core box, with reference to the bench plate 2,2," may be changed in another direction by means oi'tlie hori zontal axis 25,v the blt 26 serving to' secure the sleeve 24 With the core box in the ad- "j usted position.

The core box is filled vvith sand When it lies in the position shovvn in Fig. .4,that is, with the box disposed upwardly, after vvhicli the core plate 3U isjgfitted thereover and the core box i's inverted and moved to- Ward the bench plate 1l soA that the core plate 30 rests on the bench plate. The cdre box is then Withdrawn from the core 3l supported lon Hthe core plate, the usual vibration being impartedto the core box` by means of an instrument vibrating in the slot 17 or by other vibrating means.

From the foregoing it Will be seen that there has been provided a core-making `mathe core box is firmly held against any lateral movement Which Wbuld tend to destroy the cores during the With- Copes of this datent liiay be oli-tained for the bench' plate' may `so that the angularv drayval'v of thel core box. vvea'r" iii the ma hi'ne'` can be readily taken up without necessity of eiiiplbyiiig new parts. The box With reference to the be readily changed.

'on and desire L ngle ofthe core What l Vclaim as my inventi to' secure by Letters Patent is 1. -`In acore making machine, a bench, a guide rod arranged in rear of said bench, a frame guided on said rod, a core-box sup; porting-member on sai'd rame, aY second guide, and an adjustable tal'e'upfdevice conprising a rigid projection on the-trame; co-'j operatingvvith one face' of the" rear guida'an inclined surface on the frame', slotted member coperating vviftlr the inclined sur-Q face and also with the opposite acef: l' rear guide, slotted member in. its adjusted position on theinclined surface. v t

2. A core-malringgmachine comprising bench, a split sleeve mounted aithe rejar of the bench to turn about ahorizontalaxis,

3. lA core making machinecomprising" a bench, a core box,v 2@nd nieansfdr supporti ing the core box .so that the latter inayturn about a Horizontal axis inl rear of the box and also about a horizontal axis at right angles to the first named axis.

4. A core making machinecompri'singa base frame, abenchplate angularly adjustably secured to the baseframe'; aY guiderising from the base frame in rear of thebench plate, a frame adjustable toward and from the bench plate on the guide, and a core box angularly adjustable on said frame.,

5. A core making machineY comprising a bench, tvvo rods rising in rearoftle bench one .of said rods being rotatable, a frame guided on the other rod, a core box mounted on said frame, arida take-up device coperating With opposite sides of the rotatable rod. i

ennemis, E. Terres;

ve .dents eaejh1 ,by addressing the onlisioer f intenti,

Washington, D. C.

anda ybolt-,for securingutlte' 

